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Finding the Fourth Proportional to 737,813.76, 1,018,172.16 and 415,524.48

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Solution

The fourth proportional to 737,813.76, 1,018,172.16 and 415,524.48 is: 573,417.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,813.76 : 1,018,172.16 = 415,524.48 : x
  2. Step 2: Convert to fraction form
    737,813.76/1,018,172.16 = 415,524.48/x
  3. Step 3: Cross multiply
    737,813.76x = 1,018,172.16 × 415,524.48
  4. Step 4: Simplify right side
    737,813.76x = 423,075,457,334.48
  5. Step 5: Solve for x
    x = 423,075,457,334.48/737,813.76
  6. Step 6: Final answer
    x = 573,417.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.